For each attribute of a relation, there is a set of permitted values, called the

For each attribute of a relation, there is a set of permitted values, called the ________ of that attribute.

2) Course(course_id,sec_id,semester)
Here the course_id,sec_id and semester are __________ and course is a _________

3) The tuples of the relations can be of ________ order.

4) The term _______ is used to refer to a row.

5) A relational database consists of a collection of